Your app just broke.
Lerix already knows why.
Most teams hear about a crash from a one-star review. Lerix hears about it from the crash itself, points at the line, and helps you fix it before the next person hits it.
01
Nobody files a bug report.
They just stop opening the app.
02
Stack traces don't explain themselves.
Lerix reads them against your repo, finds the cause, and drafts the fix.
03
And when it's fixed, tell them.
Push notifications from the same dashboard. Same SDK. No second tool.
How it works
From crash to "fixed, thanks" in four steps.
Capture
One line of setup. Every crash, error and slow screen arrives with the device, the OS, the app version and what the user did just before.
Flutter · iOS · Android · React · Next · Angular · Web
- 41
NullPointerException · CheckoutViewModel.submit
Pixel 8 · Android 14 · v2.3.0
- 12
RenderFlex overflowed by 24px
iPhone 15 · iOS 17.4 · v2.3.0
- 7
SocketTimeout · api.pay/authorize
Samsung S23 · Android 14 · v2.2.9
Understand
The AI assistant reads the stack trace against your connected GitHub repo and explains the cause in plain words, not just the frame it died in.
Model of your choice · your repo · your tokens
Fix
Open a branch with the proposed change, create the GitHub issue, assign a teammate, leave a note. All from the issue page.
GitHub App · branches · issues · notes
Tell your users
Ship the update, then let the people who hit the bug know it's gone. Scheduled, by topic, with images and custom sounds.
- 41
NullPointerException · CheckoutViewModel.submit
Pixel 8 · Android 14 · v2.3.0
- 12
RenderFlex overflowed by 24px
iPhone 15 · iOS 17.4 · v2.3.0
- 7
SocketTimeout · api.pay/authorize
Samsung S23 · Android 14 · v2.2.9
Push notifications
Tell the people it happened to.
Tuesday, 9 September
9:41
AcmeUpdatednowCheckout is fixed in 2.3.1
Sorry about that. Update and your cart will be right there.
delivered
- Pixel 8 · Android 14
- iPhone 15 · iOS 17
- Chrome · web push
Compose
A title, a message, an image, a custom sound, and whatever metadata your app needs to deep-link. You see it on the device before it goes anywhere.
image · custom sound · metadata
Target and schedule
Send now or pick a time. Everyone, a topic, or one device. Android, iOS and web from the same screen, with no separate console per platform.
topics · schedule · Android · iOS · web
Platform
Delivered, tracked, still yours
Every device reports back: sent, delivered, failed. Changed your mind? Update the text after delivery, or unsend it and it disappears from the phone.
per-device status · update · unsend
What you get
One SDK. The whole loop.
Everything a small team needs to keep an app healthy, without stitching five tools together.
Error & crash tracking
Grouped by fingerprint, ranked by how many people hit them, with the device and the breadcrumbs that led there.
AI debugging assistant
Ask it what happened. It answers from the trace and your code, and can open the fix branch for you.
Pick a crash
at CheckoutViewModel.submit (checkout_vm.dart:142)
cart is still null when the payment sheet returns before loadCart() resolves. Guard the fold and await the load in initState.
Push notifications
Send, schedule, target by topic, update or unsend after delivery. Per-device status included.
Built for AI agents
A native MCP server. Whatever agent you use, Claude Code, Codex, Cursor, Replit or your own, it can create the project, generate push keys and manage topics for you.
Teams and organizations
Invite people, set roles per project, and let each person choose which emails they want.
Analytics & in-app messages
Coming next. Same SDK, nothing to reinstall.
For the agents on your team
Let your favourite agent set it up.
Lerix ships an MCP server, so it works with any agent that speaks MCP: Claude Code, Codex, Cursor, Replit, or one you built. Point it at Lerix and it can create the project, generate the keys and wire the SDK while you watch.
- A native MCP server. Whatever agent you use, Claude Code, Codex, Cursor, Replit or your own, it can create the project, generate push keys and manage topics for you.
- Flutter · iOS · Android · React · Next · Angular · Web
Works where you work
Native SDKs, not wrappers.
Pick yours to see the setup. Two steps, no config files.
<0 min
to your first event
0
native SDKs
0
dashboard for all of it
0
languages, English and Arabic
Simple, Transparent Pricing
Grow with Lerix. Start your journey with our early access demo phase.
A note from us
Built by people who ship apps.
We built Lerix for our own apps first: catch the crash, understand it, tell the users. We're a small team, we answer support ourselves, and what you ask for shapes what we build next.
— The Lerix team
Frequently Asked Questions
Collaborate with Us
Scale your engineering excellence.
Join 1-on-1 walkthrough with our platform experts. We'll show you exactly how Lerix integrates into your specific stack.
Technical Deep-Dive
Architecture review, security standards, and SDK performance metrics.
Growth Strategy
Funnel optimization, custom event tracking, and engagement workflows.
See it on your own app.
Twenty minutes, your codebase, no slides. We'll wire the SDK together and watch the first event land.